[DeTomaso] Questions on 4v heads

[Will Demelo]

What is the highest speed a non-modified Pantera should see safely? And what 
mods are required to be safe at  higher  speeds ?
Will

""""Chassis upgrades will be a good idea, too; Larry's car has
seen 182 mph..... My best guess- J DeRyke""""

----- Original Message ----- 
From: <JDeRyke at aol.com>
To: <rob at dumoulins.net>; <detomaso at realbig.com>
Sent: Sunday, October 24, 2010 2:56 PM
Subject: Re: [DeTomaso] Questions on 4v heads


> In a message dated 10/24/10 6:51:24 AM, rob at dumoulins.net writes:
>
>
>> Tony stated that I would be better off with 2V heads and a different
>> manifold so I could get better port velocity. He stated I might be able 
>> to get
>> an other 100 HP with the right heads/intake/carb setup.
>>
>> Any of you ever heard of Tony?
>> Do you guys agree with what he said?
>> Can I get notable improvement installing the port stuffers?
>>
> Never met the man, but Tony seems to know what he's talking about. Vendor
> Larry Stock of PPC-Carson City runs Aussie 2V heads on his Silver State
> street Pantera, with lots of other engine work but no stroker crank, and 
> it
> dynoed at roughly 400 bhp. Intake port stuffers may help but really, 
> adding speed
> parts to an unmolested 40-year-old engine is just asking for big trouble.
> For instance, your 'smoke at start-up' may be ring wear or valve guide 
> wear;
> as-stock the heads had no real valve guide seals and what they did get 
> often
> affects the life of the oil pump-and bearings. I've seen many guys with
> stone-stockers bolt on advertised power-adders and blow 'important' parts 
> right
> out of the blocks.
> Buy yourself a spare 351-C and do a complete rebuild done on it, with
> carefully selected speed parts, while you simultaneously enjoy the car 
> as-is
> until the replacement is ready. Expect to spend maybe $5000 for more power 
> in
> your 'new' motor. Chassis upgrades will be a good idea, too; Larry's car 
> has
> seen 182 mph..... My best guess- J DeRyke
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